27 lines
691 B
Java
27 lines
691 B
Java
// innerclasses/MultiImplementation.java
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// ©2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// With concrete or abstract classes, inner
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// classes are the only way to produce the effect
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// of "multiple implementation inheritance."
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package innerclasses;
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class D {}
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abstract class E {}
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class Z extends D {
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E makeE() { return new E() {}; }
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}
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public class MultiImplementation {
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static void takesD(D d) {}
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static void takesE(E e) {}
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public static void main(String[] args) {
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Z z = new Z();
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takesD(z);
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takesE(z.makeE());
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}
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}
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/* Output: (None) */
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